Development of the New Model of Sewage Treatment Technology
at the Test Bed in Water Plaza, Kitakyushu
Dr. Seiichi Manabe, Sepa-‐Sigma. Inc. President 1 December 2012
No Clogging, Smooth Solutions, 目詰まりしない膜分離、スムースな分離精製・水処理
Name Sepa-Sigma Inc.
Representative Dr. Seiichi Manabe
Establishment 3 August 2006
Capital Fund 261.75 Million Japanese Yen
Summary of Business
1. Comprehensive solution provider of purification technology for membrane separation in water treatment, food, overall chemical engineering (R&D)
2. Production and sales of virus removal membrane (filter) and test agent for integrity test of virus removal membrane
* Number of patent applications: 53
Address 1-2-43 Katayama, Wakamatsu, Kitakyushu, Fukuoka 808-0106 Japan
Telephone 093-791-6875 URL http://www.sepa-sigma.com
April 2004 Established Sigma Recycle Technology and Research Institute. Started development of the pore diffusion flat membrane separation apparatus, as a theme of independent research development.
August 2006 Established Sepa-Sigma Inc. and started the commercialization of technologies which has been developed in Sigma Recycle Technology and Research Institute.
April 2008 Integrate Sigma Recycle Technology and Research Institute into Sepa-Sigma Inc. and has been grown as a R&D enterprise.
Company’s Profile
1. Long fibered non-‐woven fabric / Press finish of long fibered non-‐woven fabric
Average pore size: 500nm, 1 μm, 10μm, 20μm
2. Long fibered non-‐woven fabric / CoaQng of regenerated cellulose mulQ layered membrane Average pore size: 20nm, 80nm, 100nm, 500nm
3. Regenerated cellulose mulQ layered membrane / regenerated cellulose – MulQ layered structure membrane-‐ laminated SESE
Average pore size: 10nm, 20nm
Separation Membrane of Sepa-Sigma
Test Bed A in Water Plaza Kitakyusyu Research Outline
Theme
Outline
Development o micro dispersal type sewage treatment apparatus using the flow fractionation type membrane separation module
What is the flow fractionation type…..? Flow velocity distribution occurs in water passage between membrane (wall). Large sized pollution particles concentrate in the center of the flow as you can see in the right drawing). As a result, this water treatment can effectively separate polluted particles from water.
Non woven membranes
Force
Width
- Water layer - Pollutant layer - Water layer
Provide Oxygen Adsorption
Separation etc.
Add nucleation agent
1. Remove pollutants roughly by chemical treatment
Flow fractionation filter
Development of sewage treatment process without using biological treatment
Industry
Enlarge the size of pollutant
particles
2. By adding nucleation agent, enlarge the size of pollutant particles which remained in it.
3. Flow fractionation membrane separation treatment
Treated water
Research Institution
Academia Government - Univ. of Kitakyushu - Kyushu Institute of Technology
- Kitakyushu Foundation for the Advancement of Industry Science and Technology (FAIS) - Kitakyushu Asian Center for Low Carbon Society - Mechanics and Electronics Research Institute, Fukuoka Industrial Technology Center; - City of Kitakyushu
Sepa-Sigma is responsible for this presentation info.
Flow Velocity Distribution
Sepa-Sigma Inc.
Outline of Development Develop technology to produce final effluents in low cost and stable manner by using a flow fractionation cartridge with low cost membrane.
The Worlds’First Flow fractionation cartridge
Issues ・downsizing, simplification ・odor ・reduction of cost Development of Technologies ・no clogging for long periods ・closed type with odor control ・small dissolution energy ・using low cost non-woven membrane
流速分布 水層
水層
粒子層
不織布膜
流速V大 流速V小
2t
高厷 力
ずり応力
Flow Fractionation Effect
力
不織布膜
When liquid is made to flow through passages formed between the membranes (walls), the flow velocity distribution occurs. Particles flowing between different speed of flows, turns around itself and receive force toward the center of the flow (flow fractionation effect).
特許出願済:特願2011-93427
Non-woven membranes
Force
Large Flow Velocity Small Flow Velocity
Water layer
Particle’s layer
Water layer
Non-woven membranes
Force
Height
2t
Flow Velocity Distribution
Shear stress
Patent Application No. 2011-93427
【流動分別©】
膜
一次側
二次側
[ Flow Fractionation ]
When liquid is made to flow in water passage; theoretically, the flowing speed is faster at the center of the water passage, and flowing speed of membrane side becomes slower. As a result, relatively large sized particles flow at the center and smaller particles flow near the membrane. By using this phenomenon, infectious agent such as virus are not able to come closer to membrane. Instead, membrane is able to absorb small protein substance effectively. Simultaneously, this separation method can avoid clogging of the pores of membrane. The pore diffusion method our company uses is a new separation method which we have been studying the conditions of flow fractionation very well. We believe it can achieve the maximum results.
Membrane
Upstream
Downstream
Basic Process (TOC, COD, BOD, T-‐N, Heavy Metallic Ion, S, F, B, T-‐P, SS)
前処理
ドレン
反応槽
ドレン
大粒子化
沈澱
曝気
(ニ) (ロ)
(ロ)+(イ) 造核剤
P
流動分別
Undiluted / stock solution
Nucleation Agency
Flow fractionation
Aeration Pre-treatment
Drain Reaction Vessel
Drain Enlargement of
particles Sedimentation
Recovered liquid
Fe3+
OH- �
OH- �OH- �
OH-
OH- �
OH- �
Fe3+
Fe3+
Fe3+ Fe3+
Fe3+
Fe3+
Fe3+
OH- �
OH- �
OH- � OH- �
OH- �
H+�
H+�
H+�
H+�
H+�
H+�
H+�
H+�
1 nucleus Fe3+�
2 nucleus OH- �
3 captured H2O�
4 Fe3+ for growth �
5 OH- for growth �
6 charged H+�
Particle model Fe(OH)3 (20nm) �
ζ potential : +40mV
OH- �
OH- �
OH- �
OH- �
OH- �
OH- �
OH- �OH- �OH- �OH- �
OH- �
OH- �
OH- �
OH- �
OH- �
OH- �
OH- �
OH- �
造核剤の構造 Structure of Nucleation Agent
-‐ -‐
* Arsenic (As) parQcles flock around colloidal parQcles
* Removal of floaQng nano parQcles by filter
SedimentaQon / removal
FloaQng nano parQcles
Ferric hydroxide colloidal parQcles Ave. pore size =10nm
++
+++
+posiQvely charged +
Arsenic (As) mixed soluQon
-‐
Example: AsO4
3-‐
-‐
SedimentaQon / FlocculaQon
造核剤のはたらき Work of Nucleation Agent
+ + +
+ +
+ + +
+ + +
+ +
+ + +
+ + +
+ +
+ + +
+ + +
+ +
+ + +
‐ ‐ ‐ ‐
‐
‐ ‐
‐
‐ +
+ + +
+
+ + + ‐ ‐ ‐ ‐ ‐
+ + +
+ +
+ + +
‐ ‐ ‐ ‐
+ + + +
+
+ + +
‐ ‐ ‐
‐
+ + +
+ +
+ + +
‐ ‐ ‐ ‐ ‐
‐ ‐
大粒子化
Water treatment apparatus
Enlargement of particles by adding nucleation agent
Development Target
Low cost micro diffusion type sewage treatment apparatus
Flow fractionation Cartridge
Nucleating process = Enlarge hazardous particles +
Flow fractionation process = Separate large particles from water
Current value (Average from measured value)
Raw sewage (Average)
Technical target value (standard of
discharge water)
COD (mg/L) <10 110 <10 BOD (mg/L) 200 <2 SS (mg/L) <1 250 <1 T-‐N (mg/L) 40 10 T-‐P (mg/L) 6 0.5 As (mg/L) 0.021 <0.05
SeparaQon Energy 0.1-‐0.5atm Treatment speed(LMH) 226 >300LMH
Cost of apparatus 50㎥/day
Approx. 3million Japanese Yen
Frequency of membrane replacement
5 years
Technical Target
Flow fractionation laboratory test
Medium size experiment
Object:rinse water of waste plastic Separation particle size >10µm Pore size of Membrane 10µm; filtration pressure 0.2atm Flow velocity 2cm/s(strain rate 5/s) Filtration speed: 15L/min. stable over 12 hours
Enlargement of particles By adding
nucleation agent
Treated water
Kitakyushu Water Plaza Test bed
Demonstration projects and systematization of treatment technology
Development of nucleation process technology
Structural development of membrane cartridge
Sepa-Sigma Inc.
KES System design of
treatment apparatus
HID Detailed design (DD)
and trial production of treatment apparatus
Research system
- City of Kitakyushu; Kitakyushu Foundation for the Advancement of Industry Science and Technology (FAIS)
- University of Kitakyushu, Kyushu Institute of Technology (Technical guidance) - Kitakyushu Asian Center for Low Carbon Society (Support for commercialization) - Mechanics and Electronics Research Institute, Fukuoka Industrial Technology Center
(Technical guidance); - Non-woven fabric manufacture (Company A): mass production
Demonstration Project Site Test bed (site A), Water Plaza Kitakyushu
実施場所
Test bed districts section map
Demo site
Intake / outlet
Water Plaza (Architectural rendering)
Test bed Sewage membrane treatment area
Membrane filtration area
1. Product: Flow fractionation type water treatment apparatus (sewage / drainage treatment)
2. Concept: - Micro membrane distributed type sewage
treatment apparatus - Small scale (private) sewage treatment apparatus
3. Target market, target size
Water utilization / treatment market Approx. 504 trillion Japanese Yen (2009)
Expect to grow 878.3 trillion Japanese Yen (2015) which is 72.7% increase from 2008. 3 years after the commercialization of the products, aim to achieve 0.1% share in water treatment market in the world (600 billion Japanese Yen)
Commercialization Plan
Demonstration Project Sites
Farmland, islands, disaster stricken area, developing countries - Micro membrane distributed type sewage treatment apparatus - Small scale (private) sewage treatment apparatus 1. Independent treatment apparatus 2. Adopt the technology in the water recirculation
system using oxidation ditch method. Capable to use existing facilities (water passage and propeller) so that initial cost can be reduced.
Image of commercialization
Oxidation ditch water re-circulation pond
Flow fractionation membrane separation apparatus
Flow fractionation cartridge
Contribution to International Society
Utilization of water resources corresponding to the climate change
・ Rapid development in developing countries and immediate installation of sewage treatment.
・ Move to decentralized cities, use for disaster prevention measure
Adopt technology, especially for the arsenic issues in ground water.
Industrial effluent treatment, air pollution measurement
・ Environmental technology can be adopted in manufacturing industries in Kitakyushu
・ Plan speedy commercialization by cooperating with industry, academy and government, such as with Kitakyushu Oversea Water Business Association; and Kitakyushu Asian Center for Low Carbon Society